Knife sharpener



P. DUFLOTH KNIFE SHARPENER Filed Sept. 11. 1924 March 2 1926.

abboznug Patented Mar. 2, 1926.

UNITED STATES PHILIP L. DUFLOTH, OF ANAMOSA, IOWA.

KNIFE SHARPENER.

Application filed September 11, 1924. Serial No. 737,112.

To all whom it may concern:

Be it known that I, PHILIP L. DUFLOTI-I, a citizen of United States,residing at Anainosa, in the county of Jones, State of Iowa, haveinvented certain new and useful Improvements in Knife Sharpeners; and Ido hereby declare the following to be a full, clear, and exact descrition of the invention, such as will enable ot ers skilled in the art towhich it appertains to make and use the same.

This invention relates to new and useful improvements in sharpeningdevices, and particularly to devices for sharpening edge tools such asknives.

One object of the invention is to provide a novel and cheap device ofthis character, and one wherein the abrading face is readily renewable.

Another object is to provide novel and improved means for holding theabrading element in proper taut position, and which can? be easily andquickly loosened for removal.

Other objects and advantages will be apparent from the followingdescription when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a top plan View of a knife sharpening device made inaccordance with the present invention.

Figure 2 is a bottom plan view of the same.

Figure 3 is an enlarged longitudinal cen tral sectional view on the line33 of Figure 2.

Figure 1 is a perspective view of the tightening slide removed from thedevice.

Referring particularly to the accompanying drawing, 10 represents anelongated sheet of suitably stiff metal, the marginal edge portionsbeing bent into parallel relation to each other, and extending at rightangles to the body of the sheet, as shown at 11. On end of the sheet isbent inwardly into close parallel relation tothe body of the sheet, andbetween the ends of the flanges 11. The other end of the sheet is bentat right angles to the body 10, and in the same direction as that of theflanges, as shown at 12, the outer end portion thereof being bent back.upon itself Through the center of this portion 12 there is formed anopening 13, towhich reference will be made later herein. In the body ofthe sheet 10,

of the operator, to maintain the device inproper position for sharpeninga knife.

Slidably disposed on the upper face of the body 10 is a plate 17, oneend of which is bent against the lower face of the plate, and has aright angularly extending tab 18 projecting from the terminal edgethereof, said tab being formed with an opening 19 through which thethreaded rod 15 is disposed, said tab projecting downwardly through therectangular opening 14. The outer end of the tab is formed with a narrowrebent tongue 20 which engages with one edge of a nut 21, said nutfitting snugly between the tongue and the adjacent face of the said bentend of the plate, whereby. to prevent rotation of the nut, on the rod,said rod being threaded through the nut, as shown in the drawing. Thelonger marginal edges of the plate 1.7 are provided with the flanges 22which bear against the outer faces of the flanges l1, each'of saidflanges 22 being formed with a small tab 23 which embraces the adjacentflange 11, to maintain tbhe plate 17 in proper contact with the mem- Astrip of emery cloth, or paper, has one end inserted beneath theinturned end 10,

and then bent back to extend longitudinally on the upper face of thebody 10, through out the entire length thereof. The other end of theemery strip is bent downwardly and inwardly, beneath the outer end ofthe slide plate 17. This end of the plate 17 is formed with a series ofteeth 17 which bite into the said end of the emery strip to-preventslipping thereof. Upon rotating the handle, which causes the rod 15 toturn through the nut 21, the plate 17 will be moved toward the adjacentend of the body 10, thus drawing the emery into a taut condition, sothat a knife may be moved longitudinally on the abrading face of theemery strip, without danger of the strip buckling.

hen the abrading strip has become worn, to remove said strip, it is onlynecessary to turn the rod 15 outwardly, to permit the slidable plate 17to be moved forward sufficiently to disengage the adjacent end of thestrip therefrom. The other end of the strip can then be easily andquickly disen gaged from the end 10', anda'new strip engaged ashereinbefore described.

hat is claimed is:

An edge tool sharpener including an elongated body having one endangularly turned and the other end provided with, a hook, and having anelongated opening adjacent said angulai-ly turned end, a slidableplatebeneath the body and having a projection 10 extending through theelongated opening,

a nntheld. by saidprqeetion, a strip of abrading material having one.end engaged with said hook and its other end tucked around the far edgeof said slidable ,plate and between it and the adjacent faces of saidbody, and a threaded rod engaged through one end of the body andthreaded through said nut.

In" testimony whei'eof, I afiix my signature.

% PHILIP L. DUFLOTH.

